3 years ago

_16. Which expression is equivalent to

Mathematics

1 answer:

Phantasy [73]3 years ago

5 0

Answer:

-2x-8

Step-by-step explanation:

1) Distribute:

-6/3x+-15/3-3

2) Simplify:

-2x-5-3

3) combine like terms:

-2x-8

hope this helps

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A map has a scale of 1:25 000.How many kilometres in actual distance is represented by the length 6.8cm on a map?solution

Ghella [55]

Answer:

$= 1.7km$

Step-by-step explanation:

$1 : 25000 \\ 1cm = > 25000cm \\ 6.8cm = > 25000 \times 6.8 \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = > 170000cm \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = > 1700m \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = > 1.7km$